<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
       <image :src="item.pics_big" @click="preview(i)" ></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区 -->
    <view class="goods-info-box">
      
      <!-- 商品的价格 -->
      <view class="price" >￥{{goods_info.goods_price}}</view>
      <!-- 商品信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品的名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf"> 快递：免运费  </view>
    </view>
  <rich-text :nodes="goods_info.goods_introduce"></rich-text>
  <!-- 商品导航区域 -->
 <view class="goods_nav">
<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />

  </view>
  </view>
</template>

<script>
 import { mapState,mapMutations,mapGetters} from 'vuex'

  export default {
    
     computed: {
        // 调用 mapState 方法，把 m_cart 模块中的 cart 数组映射到当前页面中，作为计算属性来使用
        // ...mapState('模块的名称', ['要映射的数据名称1', '要映射的数据名称2'])
        ...mapState('m_cart', ['']),
        ...mapGetters('m_cart',['total'])
      },
      watch:{
        // total(newVal){
        // const findResult = this.options.find(x => x.text === '购物车')
        // if(findResult){
        //   findResult.info = newVal
        // }
        // }
        total:{
          handler(newVal){
    const findResult = this.options.find(x => x.text === '购物车')
    if(findResult){
      findResult.info = newVal
    }
          },
          immediate:true
        }
      },
    data() {
      return {
        goods_info:{},
        options:[{
          icon: 'headphones',
          text: '客服'
        },{
      icon: 'shop',
      text: '店铺'
    }, {
      icon: 'cart',
      text: '购物车',
      info: 0
    }],
    // 右侧按钮组的配置对象
    buttonGroup: [{
        text: '加入购物车',
        backgroundColor: '#ff0000',
        color: '#fff'
      },
      {
        text: '立即购买',
        backgroundColor: '#ffa200',
        color: '#fff'
      }]
      };
    },
    onLoad(options) {
      console.log(options)
     const goods_id=options.goods_id
     this.getGoodsDetail(goods_id)
    },
    methods:{
      ...mapMutations('m_cart',['addToCart']),
   async getGoodsDetail(goods_id){
    const{data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
    if(res.meta.status!==200)return uni.$showMsg()
     res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display : block;"').replace(/webp/g,'ipg')
    this.goods_info=res.message
    },
    preview(i){
      uni.previewImage({
        current:i,
        urls:this.goods_info.pics.map(x=>x.pics_big)
      })
    },
    onClick(e){
      if(e.content.text === '购物车'){
        uni.switchTab({
          url:'/pages/cart/cart'
        })
      }
    },
    buttonClick(e){
      if(e.content.text === '加入购物车'){
        //组织商品的信息对象
        const goods = {
          goods_id:this.goods_info.goods_id,
          goods_name:this.goods_info.goods_name,
          goods_price:this.goods_info.goods_price,
          goods_count:1,
          goods_small_logo:this.goods_info.goods_small_logo,
          goods_state:true
        }
        //调用addToCart方法
        this.addToCart(goods)
      }
    }
   } 
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
}
.goods-info-box{
  padding: 10px;
  padding-right: 0;
  .price{
    color: #C00000;
    font-size: 18px;
    margin: 10px 0;
  }
  .goods-info-body{
    display: flex;
    justify-content: space-between;
    .goods-name{
      font-size: 13px;
      margin-right: 10px;
    }
    .favi{
      width:120px;
      font-size:12px;
      display: flex;
      flex-direction: column;
      align-items: center;
     justify-content: center;
     border-left: 1px solid #efefef;
     color: grey;
    }
  }
  .yf{
    font-size: 12px;
    color:grey;
    margin: 10px 0;
  }
  .goods-detail-container {
    // 给页面外层的容器，添加 50px 的内padding，
    // 防止页面内容被底部的商品导航组件遮盖
    padding-bottom: 50px;
  }
  .goods_nav {
    // 为商品导航组件添加固定定位
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
}
}
</style>
